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Earn +20 ptsQ: How do you find the 3rd angle in a triangle?
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What is the measurement of the 3rd angle for a triangle given both angle measurement 54 degrees?
It is an isosceles triangle and the 3rd angle is 72 degrees.
How do you find the third interior angle of a triangle?
Add the first two angles together and subtract the total from 180 to find the 3rd angle
How do you use the altitude to find the length of a right angle?
If 2 sides are known then use Pythagoras' theorem to find the 3rd side of a right angle triangle.
Identify this triangle one 30 angle one 60 angle?
It is a right angle triangle because the 3rd angle has to be 90 degrees
What type of triangle has an angle measures 60 degrees and an angle that measures 90 degrees?
It is a right angle triangle and the 3rd angle will measure 30 degrees
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